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AUDREY LEANN WILLIAMSON NP-C
NPI 1447891692
Nurse Practitioner in Charleston, MS

Active since September 30, 2019PECOS EnrolledAccepts Medicare Assignment
401 S CHURCH ST, CHARLESTON, MS 38921(662) 647-5816(662) 647-5705 Get Directions Write a Review

NPPES record last updated: September 30, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Audrey Leann Williamson Np-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

AUDREY LEANN WILLIAMSON NP-C (NPI 1447891692) is an individual nurse practitioner in Charleston, Mississippi, licensed in Mississippi (903576) and active in the NPI registry since September 2019. She is enrolled in Medicare PECOS, is affiliated with University Of Mississippi Medical Center- Grenada, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1447891692
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameAUDREY LEANN WILLIAMSONCredential: NP-C
Location Address401 S CHURCH STCharleston, MS 38921-2257
Mailing Address3290 Strider RdScobey, MS 38953-9542 · (662) 417-2577
Phone(662) 647-5816
Fax(662) 647-5705
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateSeptember 30, 2019
✔ NPI 1447891692 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in MS · 903576
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
401 S CHURCH ST, Charleston, MS 38921
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Audrey Leann Williamson Np-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3173959541
PECOS Enrollment IDI20200203000998
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

5

Medicare enrollment records show Audrey Williamson reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rapid Track Urgent Care LLC
22 mi
Urgent Care
1201 SUNSET DR
Grenada, MS 38901
  • Reassigned Medicare billing, Mississippi enrollment
  • 14 clinicians in this Medicare group
NPI 1003529652 (662) 417-2577
North Sunflower Medical Center
34 mi
Rural Health
205 WEST PARK AVE
Greenwood, MS 38930
  • Reassigned Medicare billing, Mississippi enrollment
  • 109 clinicians in this Medicare group
NPI 1063292464 (662) 219-2742
Christopher Marascalco Cummins MD LLC
38 mi
Family Medicine
406 GALLERIA DR
Oxford, MS 38655
  • Reassigned Medicare billing, Mississippi enrollment
  • 4 clinicians in this Medicare group
NPI 1710655956 (978) 444-2273
Express Care Of Cleveland, LLC
42 mi
Urgent Care
609 N DAVIS AVE STE 105
Cleveland, MS 38732
  • Reassigned Medicare billing, Mississippi enrollment
  • 27 clinicians in this Medicare group
NPI 1780151381 (662) 579-3958
Fast Pace Mississippi, PLLC
81 mi
Rural Health
517 CITY AVE S
Ripley, MS 38663
  • Reassigned Medicare billing, Mississippi enrollment
  • 463 clinicians in this Medicare group
NPI 1447769559 (662) 587-8206

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, ceftriaxone sodium, per 250 mg J0696
Ceftriaxone sodium is an antibiotic injection used to treat a variety of bacterial infections. Each injection contains 250 mg of the medicine. It works by stopping the growth of bacteria in your body.
120 services28 patients
Injection, dexamethasone sodium phosphate, 1 mg J1100
Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
118 services23 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
68 services41 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
62 services62 patients
Detection test by immunoassay with direct visual observation for influenza virus 87804
This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.
52 services25 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
42 services29 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Mississippi Medical Center- Grenada

Acute Care Hospitals · Grenada, MS
3/5 CMS rating
OwnershipGovernment - State
CMS Certification Number250168
Location960 Avent DriveGrenada, MS 38901 · Grenada County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 38921 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$80.50 typical visit price
range $51.65 – $159.18
Typical copayment $20.12 (range $12.91 – $39.79)
Most-billed visit code 99203
Established Patient
$92.20 typical visit price
range $16.15 – $129.61
Typical copayment $23.05 (range $4.03 – $32.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JESSICA ELIZABETH MCGEE FNP-C
Nurse Practitioner
401 S CHURCH ST
CHARLESTON, MS 38921
Tallahatchie County (662) 647-5816
CASSALA WARD MSN, RN, FNP-C
Nurse Practitioner (Family)
401 S CHURCH ST
CHARLESTON, MS 38921
Tallahatchie County (662) 647-5816
RAEDENA LANCASTER HILL FNP-C
Nurse Practitioner (Family)
401 S CHURCH ST
CHARLESTON, MS 38921
Tallahatchie County (662) 647-5816
MR. ROBERT L. CARTER MD
Family Medicine
401 S CHURCH ST
CHARLESTON, MS 38921
Tallahatchie County (662) 647-5816
CATHERINE MORING RD
Dietitian, Registered
401 S CHURCH ST
CHARLESTON, MS 38921
Tallahatchie County (662) 625-7110
CHARLESTON CLINIC
Nurse Practitioner (Community Health)
401 S CHURCH ST
CHARLESTON, MS 38921
Tallahatchie County (662) 647-5816

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Audrey Williamson's NPI number?

The NPI number for Audrey Williamson is 1447891692. It was assigned to this individual provider in the NPPES registry on September 30, 2019.

Where is Audrey Williamson located?

Audrey Williamson practices at 401 S Church St, Charleston, MS 38921. The listed phone number is (662) 647-5816.

What is Audrey Williamson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Audrey Williamson enrolled in Medicare?

Yes. Audrey Williamson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Audrey Williamson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Audrey Williamson reassigns Medicare benefits to 5 organizations: Rapid Track Urgent Care LLC (Grenada, MS), North Sunflower Medical Center (Greenwood, MS), Christopher Marascalco Cummins MD LLC (Oxford, MS), Express Care Of Cleveland, LLC (Cleveland, MS) and Fast Pace Mississippi, PLLC (Ripley, MS). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Audrey Williamson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Audrey Williamson accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 3 other insurers list Audrey Williamson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Audrey Williamson affiliated with any hospitals?

According to CMS data, Audrey Williamson is affiliated with University Of Mississippi Medical Center- Grenada.

When was this NPI record last updated?

The NPPES record for Audrey Williamson was last updated on September 30, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.